Improvement in carriage-springs



UNITED STATES PATENT OFFICE.

JOHN W. POST, OF LANSING, MICHIGAN.

IMPROVEMENT IN CARRIAGE-SPRINGS.

Specification forming part of Letters Patent No. 134,703, dated January7, 1873.

Nature and Objects of the Invention.

My invention relates to the use of two halfelliptic steelcarriage-springs side by side, one on each side of the bolster of acarriage or wagon instead of opposite 'to each other, as is' Descriptionof the Accompanying Drawing.

Figure l is a top view of the two bolsters of a carriage or wagonconnected by two reaches, D D, with the necessary springs properly hungby the invention. Fig. 2 is an end view of the same. Fig. 3 is a sideview of our bolster, showing the side view of our spring properly hungby the invention.

General Description. I A A are half-elliptic steel carriage-sprin gs,which should notbe made so heavy and need not be made so strong as ifthey were each a half of a full elliptic spring. B is a bolster of acarriage or wagon, made in the usual form and style. D D are the reachesconnecting the two bolsters, as usual, when the bolsters are connected.G is an iron stirrup, being an iron rod bent at right angles into theshape and form as shown in Fig. 2, and which passes over the bolsternear the end of the same, and to either end of which, on either side ofthe bolster, one end of one of the springs is fastened by being woundaround it and secured with a nut or burr. 'Nis a staple driven into thebolster over the stirrup G to keep the stirrup in its place on thebolster. A plate of iron may be placed on the bolster, under thestirrup, if necessary to prevent wearing the bolster. The stirrupGshould not be held so tight by the staple N as to prevent the necessaryswing of the stirrup caused by the action of the spring in being sprungand the reaction thereafter, which action and reaction said stirrup isintended to accommodate and facilitate.

I am aware that a single spring has been attached to the bolster in asimilar manner, although for a different object in yiew, as shown inpatent of J. N. Byington, November 27, 1866, and such I do not claim;but

'What I claim is The stirrups GG in combination with the springs A A,the bolster B, and the staples N N, substantially as and for the purposeset forth.

JOHN W. POST.

Witnesses U. G. Pos'r, DANIEL PARKER.

